GE Multi-Vapor® PulseArc® Metal Halide Lamp, High Intensity Discharge, MVR250/U/PA Designation, 250 W Wattage, Quartz Metal Halide Lamp, E39 Mogul Screw Lamp Base, ED28 Shape, 22400 Lumens, 15000 hr Average Life, 62 CRI, 3900 K Color Temperature, Clear Lamp, Enclosed Fixture, 3-1/2 in Dia x 8-1/4 in L Dimensions